This chest X ray demonstrates a lung mass and pericardial effusion. The PA view demonstrates a non-calcified mass in the peripheral portion of the right upper lobe. The cardiopericardial silhouette is enlarged. Whether this is a pericardial effusion and/or cardiac enlargement would require additional imaging studies. This left hilum is also abnormal from either a mediastinal mass or an enlarged pulmonary artery. With the lung mass, the former is more likely.